Artificial-stone-molding machine



N6. 746,666. -PATENTED :16665, 1.964.

J. SINCLAIR1 ARTIFICIAL STONBMOLDING MACHINE. APPLIOATIGN FILED SEPT; 4, 1663.

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N0.748,666. PATENT- 3D JAN.5,1904.

J. SINGLAIR.

AR'IIPI'CIAL STONE MOLDING MAGINE.

APPLICATION FILED SEPT. 4. 1903.' Y

2 SHEETS-SHEET Z.

N0 MODEL.

Patented January 5, 1904.

PATENT OFFICE. j

`JAMES SINCLAIR, OF CHICAGO, ILLINOIS.

ARTIFlC-IAL-STNE-MOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No'. 748,666, dated January 5, 1904.

I Application filed September 4, 1903. Serial No. 172,012. (No model.)

.To all whom t may conservar Be it known that I, JAMES SINOLAIR, a citizen of the United States, residing at the city of Chicago, inthe county of Cook and State of Illinois, have made certain new anduseful Improvements in Artificial Stone Molding Machines; and I'do hereby declare the following to be a full', clear, and correct description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure lis a front elevation of the machine. Fig. 2 is a transverse elevation taken on line a: a. Fig. 3 is au end elevationof the same. Fig. 4 shows a detail view of a part of Fig. 3.

Similar letters refer to similar parts throughout the'several views.

This invention relates to that class of artificial-stone-molding machines in which a mixed and plastic material of a self-hardening nature is placed into a matrix or moldbox of the required dimensions and shape that the artificial stone is required to have.

The machine consists of a frame B, provided with special arranged workin g parts adapted to molding and handling a mixed and plastic material in a particular manner, as hereinafter shown. vided with a tumbling-plate E, that is snpported from gudgeons E E", that take into boxes F, secured to the frame B of the machine. The gudgeon E" is provided with a handle E" to enable the workmen to reverse the position of the plate E to the gudgeous that support it. In other words, to cause the plate E to turn over. The gudgeon E is provided with a belt-pulley P' for the same purpose-that is, to cause the plate E to turn over when the operator prefers to manipulate the tumbling-plate by belt-power. The tumbling-plate -E is provided with a rectangular box D, that constitutes the matrix or mold in which the artificial stone is formed by placing in said matrix or mold-box a mixed and plastic material. The sides and the ends of the rectangular box D, constituting the matrix or mold, are adjustable and are secured to the tumbling-plate E by adjustable stud-screws k', that take into the nuts le, pivoted from their respective brackets 7a, at-

tached to the tumbling-plate E. The nuts 7c" when moved around cause their respective stud-screws k to y move in or out, according toth'e direction that the said nuts k are turned around, and thereby move correspondingly the sides and the ends of the mold- -box D, to which they are attached.

The mold-box D is provided with a removable cover D, that is firmly held to the face of the mold-box D by the rods d', taking into the eye-straps d, projecting from the tumbling-plate E. The mold-box D is further provided with a roller H, that is operated to take lengthwise over the mold-box D before the cover D is placed upon the mold-box, and the said roller H, is suspended from the rod H', that takes into a hand-wheel H", bearing upon a carriage H", that is alternately drawn back and forth over the rails R, situated at the top of the machine, by the said rod H being connected to the cable or rop'e V, taking over the valleys y rl 2l', that a reciprocating movement is given to the suspended rod H'- and its carriage H and the roller H, suspended from the said rod,when the operator turns around the crank or handle j. The' rope-pulley y is secured to the spindle j', provided with a handle j, and the said spindle is carried from boxes j", securedto the frame of the machine. The belt-pulley P, with the connecting-shafts and gear-wheels between the said pulley and the pulley y, is also for operating the roller H, that the said roller is given a reciprocating motion lengthwise of the mold-box D by causing the pulley yy to alternately pull the rope or cable V from its` opposite ends, that the rod H of the roller H is given a reciprocating movement lengthwise oft he mold-box D. When the operator prefers the same, as in the case of a long matrix or mold, belt-power is more conveniently applied.

Located centrally beneath the tumbling- IOO two gear-pinions I", provided with teeth that mesh with the teeth formed upon the spudposts I.

Located upon the frame B and at a convenient height for the spindle O of the handle O is a box O, that the spindle of the said handle takes into, and the said spindleis also provided with a sprocket-wheel N',and taking over the sprocket-wheels N N is a link chain N, and as the handle O is turned around by the operator the pinions I of the shaft L cause the spud-posts I to move up or down and lift or lower the table J, according as the said handle O is turned around by the operator. The belt-pulley P is also used to raise or lower the Spud-post when desired by the operator.

Having described the several parts of the machine, the operation of same is as follows: The tumbling-plate E of the machine that carries the mold-box D, in which the artiicial stone is produced either asa solid or hollow stone, is first held in position, as shown in full lines in in Fig. 1, with the cover D', however, removed, that a mixed and plastic material can be placed into the matrix or mold-box D until the said mold-box is completely full of the required material. The roller H is then brought into action and is made to traverse lengthwise of' the mold-box and roll down the mixture to an even and level surface with the top face of the moldbox D. This operation is produced by turning around the crank or handlej as many revolutions in one direction as it takes to make the roller H travel from one end of the mold-box to the opposite end of the same, when the operator reverses the movement of the handle j, giving a reverse direction to the roller H and causing it to move in an opposite direction, and the said operation is continued until the material is sufficiently pressed into the matrixl or mold-box D and leveled off with lthe face of the said moldbox. The cover D is subsequently placed upon the mold-box D and secured to the same by the draw-rods d', carried from the eye-straps d, that project from the tumblingplate E. The tumbling-plate E, with its attached mold-box D, is then caused to turn over one-half revolution by service of the crank or handle E'" or by the service of the pulley P'. The cover D in its new position then becomes the bottom of the mold-box D, and the cast Within the mold-box is then carried from what was previously the cover D. Previous to the cover D being placed upon the mold-box D the two ends and one side of the mold-box are withdrawn from contact with the cast within the mold-box by'turning around the nuts k, operating the stud-screws 7c', to which the said side and the ends are attached, and the cover D' is only allowed to bear upon the ends and the side of the moldbox that were drawn back 'from the cast a short distance, leaving one side of the mold box free from contact with the cover D and in a position with the cover D' to hold the cast within the mold-box D, that the cast will not shift its position to the mold-box D when turned upside down by reversing the position that the mold-box occupies to the tumbling-plate E. The succeeding operation after the tumbling-plate E is turned over, with its mold-box D, is made by withdrawing the side of the mold -box D remaining in contact with the cast within the said mold-box by turning around the nuts la", which oper-v ate the said side. The said operation being performed leaves the sides and the ends of the mold-box entirely free from the cast within the-moldbox D. The table J is then caused to rise up and come in contact with the cover or bottom D by the operator turning around the handle O to cause the Spud-posts I' to rise up and lift the table J to the required height. The draw-rods d are then removed from the eye-straps d. The cast within the mold-box D being entirely free from the sides and the ends of the mold-box D and resting upon the cover or bottom D is now free to be removed from the said mold -box D and is accomplished by ther operator moving the crank or handle O in the direction necessary to lower the Spud-posts I', supporting the table J, until the said table rests upon the two bogies Q, and by which the table J and the cast resting upon the cover or bottom D' are conveyed to a storage-shed or warehouse, where the cast is allowed to remain and become thoroughly dried and hardened to articial stone, suitable for building purposes. The bottom D remains as a support for the cast that is taken from the mold D until the said cast is sufciently dry and hard that the removal of the said bottom D can be accomplished without detrimentv to the castas an artificial stone.

The cast produced from the mixed material within the mold-box D is formed as a solid or as a hollow block, as desired. When hollow blocks of artificial stone are desired, the mold-box D is provided with forms conforming to the required contour of the artificial stone to be produced.

What I claim as new, and desire to secure by Letters Patent, is as follows:

l. In an artificial-stone-molding machine, the combination of the frame B, provided with a tumbling-plate E, supported and carried from gudgeons E', E", taking into boxes F, secured to the frame B, of a matrix orA mold-box D, having its sides and ends at- IOO IOS

IIO

IIS

tached to adjustable stud-screws lo', taking into nuts 7c, carried from brackets k, attached tothe tumbling-plate E, substantially as shown and described.

2. In an artificial-stone-molding machine,

the combination ot' the tumbling-plateE, provided with gudgeons E', E", taking into boxes F, supported from a frame B, of the mold-box D, supported from the said tumbling-plate E, and provided with a' cover D', suspended from draw-rods d', taking into eye-straps d, secured to the tumbling-plate E,

that said cover is held to the mold box D, upon reversed positions of the tu mbling-plate E, and itsfmold-box D with one another, substantially as shown and described.

3. In an artiiicialstonemoiding machine, the combination ofa tumbling-plate E, provided with a mold-box D, of a roller H, taking over said mold-box, and suspended from a rod H', taking into a hand-wheel H", carried from a carriage H"', alternately drawn back and forth by a cable or rope V, taking over the pulleys y, i, il', manipulated by a crank or handle j, situatedl on the spindlej' of the pulley y, substantially as shown and described.

4. In an artificial-stone-moldng machine, a frame B, provided with a tumbling-plate E, carrying a mold-box D, in combination With a table J, provided with Spud-posts I', pinions I" meshing with the said Spud-posts, and secured from a shaft L, operated through link and chain gear as a means for lowering and raising said table, subst-an tially as shown and described.

5. In an artiticial-stone-molding machine the combination of a tumbling-plate E, with a matrix or mold-box B, having its sides and ends attached to screw-studs le', taking into nuts k" pivoted from brackets lo attached to the tumbling-plate E, whereby the sides and the ends of the said box D can be withdrawn a short distance from the cast Within the said mold-box D, that the cast -is free from the sides of the mold box at the time of Withdrawing the cast, that frictional resistance of the cast with the mold-box D, is avoided, substantially as shown and described.

JAMES SINCLAIR.

Witnesses:

SAM JONAS, P. RIGHELSEN. 

